2. HEMITELIA. g 2. AMPHICOSMIA. 47 



often abbreviated, lowest or 2 — 3 lower niostly free; veins to 10—12 on 

 a side, fuscous beneath, pellucid, the higher simple, the others forked or 

 sometimes 3-furcate. Sori subcostal, mostly on the 6 — 7 lower veins; 

 indusium very minute, eroso-denticulate or -fimbriate. 

 Sumatra. 



(Sb) H. horriflipes, r. A. ». n., in Bull. Btz., 1914, XVI, 16. 



Stipes 35 cm. or more long, deciduously ferrugineo-furfuraceous, 

 glabrescent, one side aculeate with narrowly conical, sharp spines, the 

 other side asperous or muricate; rachises asperulous or muriculate, 

 ferrugineo-araneous above, deciduously furfuraceous, glabrescent. Pinnae 

 stalked, lanceolate, to 60 cm. or more long, 18 cm. broad, acuminate, 

 slightly narrowed at the base. Pinnulae numerous, subsessile, approximate, 

 linear-lanceolate, the largest horizontal, 9 cm. long, l','j cm. broad at the 

 base, acuminate, cut down nearly to the costa, the costa ferrugineo- 

 tomentose above, scaly beneath, the scales pale-brown, lanceolate-ovate, 

 acuminate. Lobes spreading, subcontiguous, linear-oblong, rather straight or 

 slightly falcate, 3 mm. broad, blunt or bluntish, crenate ; costules beneath 

 buUato-squamulose in the lower part; veins 10 — 12 on a side, once (or rarely 

 twice) forked, the higher simple. Texture firm-herbaceous ; surfaces naked. 

 Sori medial on the lower or lowest veins ; indusium very minute, rudimentary. 



Sumatra. 



(3c) H. lieiniehla.inyclea, v. A. ». R.,- Cijathea hemichlamydea, 

 CopeL, in Philipp. Journ., VF, 361 ; C. Chr., Ind. Fil., Suppl. 



Stipes black, 30 cm. long, provided with a few small spines, purveyed 

 above with linear, black-brown scales and 2 rows of glands ; rachis beneath 

 black, tuberculate, glabrescent. Pinnae 4-5 cm. long, 18 cm. broad, sessile, 

 acuminate, the rachis beneath minutely tuberculate and sparingly deciduously 

 minutely pilose, above sparingly hairy and scaly; lowest pinnae reduced. 

 Pinnulae 9 cm. long, subsessile, acuminate, unequal-sided at the base, cut 

 down nearly to the costa, the costa pilose above, scaly beneath; lowest 

 pinnulae reduced. Lobes approximate, 3 — 4 mm. broad, rounded and 

 serrulate at the apex; costulae naked above, slightly scaly beneath. 

 Texture herbaceous; surfaces naked; veins ± 7 on each side of the costulae, 

 the lower forked. Sori costular, the lower more remote; indusium 

 distinct. 



Borneo. 



